Question

The lengths of three sides of a triangle are 20 cm, 16 cm and 12 cm. The area of the triangle is​

Answer 1

Answer:

l×b×h

20×16×12

3890 ans

Answer 2

The given sides - a=20,b=16,c=12

So,find out the perimeter first

P = a+b+c

=P = 20+16+12 = 48cm

So Now,find out side

2s = 48

s = 24 cm

now let's find out area

Area =√24(24-20)(24-16)(24-12)

=√24(4)(8)(12)

=√2*2*3*2*2*2*2*2*2*2*2*3

=2*2*2*2*2*3 =48cm

Therefor the area of triangle is 48cm